Outer Space & Universe
Outer Space & Universe
Space, also known as outer space, is the near-vacuum between celestial bodies. It is where everything (all of the planets, stars, galaxies and other objects) is found.
On Earth, space begins at the Kármán line (100 km above sea level). This is where Earth's atmosphere is said to stop and outer space begins. This is not a firm boundary but is a convention used by scientists and diplomats.
Items in space are free to move back and forth; up and down; and left and right. These three dimensions are what make 3D space. Items also move forward through time, which is sometimes called the fourth dimension.
The majority of space contains very little matter and so most of it is a vacuum. Scientists do not know how big space is but we do know that space is extremely big, and is always expanding.
According to the big bang theory, all matter and energy in the Universe was compressed into a very small space. Then it exploded and started expanding. Space is still growing in size today; this means the distance from one galaxy to distant galaxies is getting longer.
Gravity is the force that keeps the Moon in orbit around the Earth and the planets in orbit around the Sun. Gravity can stretch and bend space similar to how a heavy ball placed on a stretched sheet of rubber will cause the rubber to stretch. The scientist who discovered that space can bend is named Albert Einstein. How gravity bends space is part of his theory of general relativity.
Astronauts, Cosmonauts, Taikonauts and Spationauts
An astronaut is any person who is trained by NASA to travel and perform tasks in space. Although the space traveler may not necessarily be a United States citizen, each astronaut does go through a rigorous training regiment by the National Aeronautics and Space Administration. Other space travelers go by other names then astronaut depending on their country of origin.
In the United States, astronaut is derived from the Greek words ástron (star) and nautis (sailor). While, in Russia, a space traveler goes by the name космонавт (English: cosmonaut), which is derived from the Greek words kosmos (universe) and nautis (sailor). Westerners call a space traveler from China a taikonaut, based on the 1998 writings of Chiew Lee Yik and Chen Lan where the term tàikōng (great emptiness), Chinese for “space”. In China, the term yuháng yuán (universe navigator) is used for space traveler.
Only the United States of America (United States), Russia (earlier, the Union of Soviet Socialist Republics), and the People’s Republic of China (China) have sent manned spacecraft into space. Other countries have assisted these countries by sending their own space travelers on space missions. For instance, a French space traveler is called a spationaut (from the French word spationaute), which is derived from the Latin spatium (space) and Greek nautis (sailor). (plural in Greek nautes = sailors)
-
10:01
Strong G3 Geomagnetic Storm from X-Class Solar Flare expected to hit Earth today!
Added 196 Views / 0 Likesmy internets are back, buddy.God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
-
03:09
Perseverance stares at rocks & Sun while Mars helicopter flight is delayed
Added 196 Views / 0 LikesNASA’s Perseverance rover captured new imagery on April 13, 2021 of the Red Planet and the Sun. On April 12, NASA announced that Ingenuity needs a software update and will not fly until at least next week. Full Story: https://www.space.com/nasa-delays-mar
-
11:25
Sundiving Comet. 2 solar Filament eruptions. East Coast Weather watch & BIG April 9th storm.
Added 196 Views / 0 LikesLots happening on the Sun today even tho we are in solar minimum conditions.God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thorn
-
12:26
Flood Danger Kentucky Tennessee Indiana London! Nor'Easter Next Weekend! Solar Flare!
Added 196 Views / 0 LikesWhat a month February has been.God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
-
02:54
Space to Ground: One Week, Two Spacewalks: 03/05/2021
Added 196 Views / 0 LikesNASA's Space to Ground is your weekly update on what's happening aboard the International Space Station. Got a question or comment? Use #AskNASA to talk to us.Learn more about the important research being operated on Station:https://www.nasa.gov/iss-scien
-
01:11
Perserverance's ejected 'belly pan' seen in distance in latest Mars pics
Added 196 Views / 0 LikesThe Perseverance rover ejected a 'belly pan,' used to protect its sampling system during landing, on Sol 22 (March 13, 2021). On Sol 23, it can be seen in the distance after the rover drove away from it. Credit: Space.com | imagery courtesy: NASA/JPL-Calt
-
15:44
Red Alert! Tornadoes in South Carolina & a Stormy day ahead! + me talking about Vacation
Added 196 Views / 0 LikesY'ALL ARE VERY COOL.God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornewsspacecowboy2017@gmail.com
-
03:01
James Webb Space Telescope - Top Ten Facts!
Added 196 Views / 0 LikesThe next generation space telescope will be 100X more powerful than the Hubble Space Telesocpe, giving it the ability see the first galaxies born after the Big Bang. Take a quick look at its history and what its capable of in this highlight reel of facts.
-
01:47
Chinese space station's robotic arm tested on-orbit in these amazing views
Added 196 Views / 0 LikesChina's Wentian lab module's robotic arm was tested on Aug. 3, 2022. It will ”support the astronauts' extravehicular activities, delivering goods, and maintaining andrepairing the exterior of the space station,” according to China Central Television (CCTV
-
05:56
Tropical Storm to hit Louisiana in a week? Severe Weather tonight & tomorrow! Floody Florida 7day+!
Added 195 Views / 0 LikesHave a great weekend!T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://www.patreon.com/thornews
-
02:58
Fast Radio Bursts traced to spiral arms of several galaxies by Hubble
Added 195 Views / 0 LikesNASA’s Hubble Space Telescope was used to tracked down the locations of five fast radio bursts. Video credit: NASA's Goddard Space Flight Center
-
03:32
See 3D renderings of amazing Chandra X-ray Observatory discoveries
Added 195 Views / 0 LikesTake a tour of 3D renderings of supernova remnants and more studied by the Chandra X-ray Observatory. "Chandra's 3D datasets are now included in Voyager, a platform developed by the Smithsonian to enable datasets to be used as tools for learning and disco
-
29:48
Space Chat! UFO Answers Coming Soon?
Added 195 Views / 0 LikesThis Friday (June 4), Space Chat will further explore the latest declassified UFO footage. The Pentagon's long-awaited UFO report to Congress is due this month! We're hoping it will shed light on these mysterious flying objects. For now though, host Chels
-
01:17
Ingenuity completes 'most challenging' flight yet on Mars - See the first pics!
Added 195 Views / 0 LikesNASA's Mars helicopter completed its ninth flight on July 5, 2021. It flew for "166.4 seconds at a speed of 5 m/s," making it the most challenging yet, according to NASA's Jet Propulsion Laboratory.More Flight 9 footage and details to come! Stay tuned.Cre
-
17:19
RED ALERT! Dangerous week ahead! Canada Heat Record Broken! Heatwave! Fires! Floods! WTF Surprises!
Added 195 Views / 0 LikesThis will probably be the most dangerous & wildest 10 days until November.God bless everyone,T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornew
-
03:27
Perseid meteor shower, planets & blue moon in August 2021 skywatching
Added 195 Views / 0 LikesThe Perseid meteor shower peaks on August 11. Jupiter and Saturn are great targets this month and learn about the "seasonal blue moon." Night sky: What you can see this month]: https://www.space.com/16149-night-sky.htmlBest night sky events this month - s
-
01:10
Chinese astronauts do some 'spring cleaning' aboard Tiangong space station
Added 195 Views / 0 LikesChinese astronauts Nie Haisheng, Liu Boming and Tang Hongbo engaged in a bit of spring cleaning recently aboard the Tiangong space station. The astronauts have spent the last 2 months in space. Credit: Space.com | footage courtesy: China Central Televisio
-
19:18
Big Northeast Storm & Wild Westcoast Wildfires & Peak Hurricane Season Watch.
Added 195 Views / 0 Likeswelcome to the 'chill zone' september.T LEWISON5430 BIRDWOOD RD. #416HOUSTON TEXAS 77096https://www.paypal.me/THORnewshttps://venmo.com/TEric-Lewison$THORnews on CashApphttps://www.patreon.com/thornews
-
56:02
Las Tormentas del Sistema Solar
Added 195 Views / 0 Likes¡Estamos en directo! Disfruta de una animada discusión con científicos de la NASA sobre los diversos climas, meteorologías y ambientes de los planetas del Sistema Solar y mas allá. Envía tus preguntas con #preguntaNASA